Which vegetable has the most nutrients?

 It's difficult to identify one single vegetable as the "most nutritious" as different vegetables contain different nutrients. However, here are some vegetables that are considered to be highly nutritious:

Spinach: Spinach is a nutrient-dense leafy green vegetable that is rich in vitamins A, C, and K, as well as iron, calcium, and folate.

Kale: Kale is another leafy green vegetable that is packed with nutrients, including vitamins A, C, and K, as well as calcium, potassium, and magnesium.

Broccoli: Broccoli is a cruciferous vegetable that is high in vitamin C, vitamin K, and fiber. It also contains other beneficial compounds such as sulforaphane and glucosinolates.

Sweet potatoes: Sweet potatoes are a root vegetable that are rich in vitamin A, vitamin C, potassium, and fiber. They also contain antioxidants such as beta-carotene and anthocyanins.

Bell peppers: Bell peppers are a colorful vegetable that are high in vitamin C, vitamin A, and potassium. They also contain antioxidants such as carotenoids and flavonoids.

Incorporating a variety of nutrient-dense vegetables into your diet can help ensure that you are getting a wide range of important nutrients.